Lighting device



FIG. 1 is a bottom, right, and front perspective view of a lighting device showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, left, and rear perspective view showing an alternate configuration thereof.

The dashed broken lines in the Figures show portions of the lighting device that form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 